Search: Herschel, John in correspondent 
Schumacher, Heinrich Christian in correspondent 
1830-1839::1835 in date 
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Herschel1055

From:
Sir John Herschel
To:
Heinrich Christian Schumacher
Date:
[24 February 1835]
Source of text:
RS:HS 25.4.8
Summary:

Describes JH's location at the Cape and his observational sweeps, lists nebulae and double stars, as well as comet and eclipse observations. [Letter finished on 1835-3-5.]

Contributor:
John Herschel Project

Herschel2885

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[5 March 1835]
Source of text:
RS:HS 15.376
Summary:

[Otto] Rosenberger has calculated perturbations of Halley's Comet by the inner planets. [Wilhelm] Beer and [J. H.] Mädler have a map of the moon and have located two moving spots on Jupiter. F. W. Bessel's assistant has reduced James Bradley's observation to constants of aberration and nutation.

Contributor:
John Herschel Project

Herschel2886

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[9 July 1835]
Source of text:
RS:HS 15.377
Summary:

Visits F. W. Bessel in Berlin to discuss pendulum experiments. [C. A.] Steinheil invented a photometer to measure relative light of different stars.

Contributor:
John Herschel Project
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